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390 results about "Antifouling coating" patented technology

Fluorosilicone-modified low-surface-energy antifouling coating and preparation method therefor

Disclosed in the present invention are a fluorosilicone-modified low-surface-energy antifouling coating and a preparation method therefor. The coating comprises the following components in parts by weight: 11-15 parts of butyl acrylate, 3-4 parts of dodecafluoroheptyl methacrylate, 3-4 parts of vinyl-terminated polydimethylsiloxane, 3-4 parts of 2-hydroxy-4-acryloyloxybenzophenone, 30-38 parts of methyl isobutyl ketone, 0.15-0.25 parts of azobisisobutyronitrile, 0.1-0.2 parts of sodium hydroxide, 2-3 parts of modified titanium dioxide nanoparticles, and 0.5-1.5 parts of 3-aminopropyltriethoxysilane. In the present invention, vinylpentamethyldisiloxane reacts with decamethylcyclopentasiloxane to prepare vinyl-terminated polydimethylsiloxane; a titanium dioxide precursor is mixed with polydopamine nanoparticles for modification to prepare modified titanium dioxide nanoparticles; and then the components above are mixed to prepare the fluorosilicone-modified low-surface-energy antifouling coating. The coating has low surface energy and good adhesion and ultraviolet resistance.
Owner:CNOOC CHANGZHOU PAINT & COATINGS IND RES INST +1

Waterborne multi-layer degradable self-polishing ship antifouling paint system and preparation method thereof

The invention discloses a water-based multi-layer degradable self-polishing ship antifouling coating system and a preparation method thereof, and belongs to the field of marine anticorrosion and antifouling materials. The system is composed of a zinc-rich primer, a modified epoxy intermediate paint and a functionalized finish paint. The finish paint takes polyhydroxyalkanoate as a matrix, and integrates a self-stratification modifier capable of forming a silicon-rich top layer during curing and a latent dual-curing system capable of realizing normal-temperature curing through a synergistic effect. According to the present invention, the mixing mechanism of dynamic self-polishing and static fouling release is adopted, and the innovative curing technology is combined, such that the long working life, the excellent mechanical property and the long-acting antifouling ability are achieved. The drawing adhesive force of the system is not lower than 7.9 MPa, and the environment-friendly requirements that the content of volatile organic compounds is smaller than or equal to 50 g / L, and the content of free diisocyanate monomers is smaller than or equal to 0.1 wt% are met.
Owner:DU BAI CHENG NEW MATERIAL TECH (SHANGHAI) CO LTD +3

A transparent, self-lubricating, organosilicon hybrid antifouling coating with a negatively charged surface and its preparation method.

This invention belongs to the field of marine antifouling, and specifically relates to a transparent, self-lubricating organosilicon hybrid antifouling coating with a negatively charged surface and its preparation method. The antifouling coating is obtained by a sol-gel reaction of modified nanocellulose, hydroxy acid, and functional fluorine / siloxane monomers; the mass ratio of the hydroxy acid to the modified nanocellulose is 10–100:1; the mass ratio of the functional fluorine / siloxane monomer to the modified nanocellulose is 10–300:1. This invention, based on a multi-element green antifouling strategy, constructs a material surface with negative charge, self-lubrication, and low surface energy. The prepared antifouling coating exhibits excellent transparency, mechanical properties, and static antifouling performance. This antifouling coating is environmentally friendly and has broad application prospects in the field of marine antifouling.
Owner:INST OF OCEANOLOGY - CHINESE ACAD OF SCI

Anti-fouling coating aging simulation test method

The invention provides a simulated aging test method for an antifouling coating. The simulated aging test method comprises the following steps: S1, constructing a natural aging performance model of the antifouling coating; s2, constructing an accelerated aging model of the antifouling coating and acquiring an acceleration ratio N of natural aging to accelerated aging; s3, based on an accelerated aging model, acquiring an acceleration period Mi corresponding to a critical threshold R (temporary i) of a copper ion exudation rate, wherein the predicted life Lp (temporary i) of the antifouling coating is equal to Mi * N; and S4, based on a natural aging model, obtaining a predicted copper ion exudation rate R < pre-i > corresponding to the predicted life Lp < pre->, judging whether R < pre-i >-R < critical i > / R < critical i > is less than or equal to 10%, if so, outputting a near threshold R < critical i > and the predicted life Lp < pre-i >, and if not, adjusting the critical threshold of the copper ion exudation rate to R < critical i + 1 > and returning to the step S3. According to the method, the performance failure threshold value of the antifouling coating is taken as a boundary condition, the performance of the antifouling coating is rapidly evaluated, the service life of the antifouling coating is quantitatively predicted, the prediction result is subjected to cooperative cross validation through linkage double models, and the reliability is improved.
Owner:CHINA SHIPBUILDING INDUSTRY CORPORATION NO725 RESEARCH INSTITUTE

Antifouling coating composition, coating film, article, and method for producing antifouling coating composition

The present invention relates to an antifouling coating composition containing a water-dispersed elastomer resin and a hydrophilic silicone oil having an HLB of 6 or more. The present invention also relates to a method for producing the antifouling coating composition, the method comprising mixing a first liquid containing at least a water-dispersed elastomer resin with a second liquid containing at least a hydrophilic silicone oil having an HLB of 6 or more.
Owner:NITTO DENKO CORP

Artemisinin modification-based polymer composite anti-marine fouling coating and preparation method thereof

The invention discloses a polymer composite material based on artemisinin modification, which is characterized in that the polymer composite material comprises organic silicon polyurethane modified by an artemisinin compound and organic silicon polyurea, and the mass ratio of the organic silicon polyurethane modified by the artemisinin compound to the organic silicon polyurea is (2-1): (1-2). The coating is high in hardness, good in mechanical performance, low in elastic modulus, good in stain removal effect and good in adhesion performance, can be stably attached to a substrate and is not prone to falling off, meanwhile, has an excellent antibacterial effect, is not prone to being hydrolyzed by water in seawater or air in the using process on the premise that all the conditions are met, is good in water resistance and can be widely applied to the field of water treatment. Therefore, the long-term stability of the composite coating is ensured, the comprehensive performance of the coating can be comprehensively improved, and the marine antifouling coating serving as an environment-friendly marine antifouling coating has a good application prospect.
Owner:SANYA SCI & EDUCATION INNOVATION PARK WUHAN UNIV OF TECH

Organic silicon modified acrylic resin antifouling paint and preparation method thereof

The invention discloses organic silicon modified acrylic resin antifouling paint and a preparation method thereof, and particularly relates to the field of chemical paint. The antifouling paint is prepared from the following components in parts by mass: 8 to 12 parts of adamantane acrylate, 5 to 8 parts of trifluoroethyl acrylate, 2 to 3 parts of 2-hydroxyethyl acrylic phosphate, 0.8 to 1.2 parts of tert-butyl peroxypivalate, 4 to 6 parts of tridecafluorooctyltrimethoxysilane, 1 to 2 parts of isophorone diisocyanate, 3 to 6 parts of fluorosilane modified nano TiO2 and 1 to 2 parts of graphene oxide. 20-30 parts of deionized water, 0.5-1 part of a polyether modified polysiloxane defoaming agent, and 0.3-0.5 part of an ultraviolet light absorber UV-327 can be additionally added. The preparation method comprises the following steps: S1, preparing isocyanate modified fluorine-containing organic silicon; s2, preparing a ternary copolymer prepolymer; s3, preparing a modified resin matrix; s4, preparing a fluorosilane modified nano TiO2 / graphene oxide composite filler dispersion liquid; and S5, mixing the resin matrix and the dispersion liquid, and performing stirring and vacuum desolventizing to obtain a finished product. The coating has the characteristics of super-hydrophobicity, high hardness, strong adhesion, long-acting antifouling property, aging resistance and environmental protection.
Owner:东胜化学(上海)有限公司

Polyurethane antifouling paint, preparation method thereof and polyurethane antifouling coating

The invention provides a polyurethane antifouling paint, a preparation method thereof and a polyurethane antifouling coating, and belongs to the technical field of paints. The polyurethane antifouling paint comprises a cross-linkable part and a non-cross-linked resin part, wherein the cross-linkable part comprises a second prepolymer formed by reaction of polyether polyol, dihydroxyl long-chain quaternary ammonium salt and diisocyanate; the non-crosslinked resin part comprises linear or branched chain polyurethane grafted with a sterilizing agent, and the sterilizing agent comprises 3-iodine-2-propynyl-N-n-butyl carbamate. The polyurethane antifouling coating provided by the invention can provide a relatively long-acting antifouling effect in a fresh water environment, the dihydroxyl long-chain quaternary ammonium salt and the bactericide can inactivate protein in contact with the coating, and meanwhile, the reduced free energy on the surface of the polyurethane antifouling coating promotes desorption of surface fouling.
Owner:BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD

Marine antifouling paint and preparation method thereof

The invention relates to the field of marine antifouling paint, and particularly discloses marine antifouling paint and a preparation method thereof. The marine antifouling paint is prepared from, by weight, 40%-60% of matrix resin, 10%-15% of solvent, 6%-15% of antifouling agent, 15%-30% of filler, 5%-10% of curing agent, 0.1%-1.0% of defoaming agent, 0.1%-1.0% of dispersing agent and 0.1%-1.0% of flatting agent, and the matrix resin comprises self-polishing resin and tough resin according to the weight ratio of 7: (1-6). The marine antifouling paint provided by the invention has relatively high flexibility, relatively high adhesion strength with a base material, good mechanical properties and a relatively long-lasting relatively high antifouling effect.
Owner:GUANGDONG HOSEN NEW MATERIALS CO LTD

Composite acrylic acid low-surface-energy antifouling coating, preparation method and application

The invention provides a composite acrylic acid low-surface-energy antifouling coating, a preparation method and application, and belongs to the technical field of marine antifouling materials, the composite acrylic acid low-surface-energy antifouling coating comprises a three-layer composite structure, the three-layer composite structure comprises a bottom layer, a middle layer and a surface layer from bottom to top, the bottom layer is capsaicin-loaded polymethyl methacrylate, and the middle layer is a polymethyl methacrylate surface layer. The bottom layer is made of capsaicin, the middle layer is made of pressure-sensitive adhesive activated by oxygen plasma, the surface layer is made of dihydroxyl-terminated polydimethylsiloxane, the mass ratio of the bottom layer to the middle layer to the surface layer is (23-25): 1: (23-25), and the mass content of capsaicin in the bottom layer accounts for 5.82-5.75% of the total mass; based on the bonding strength change of the pressure-sensitive adhesive generated by oxygen plasma jet and the capsaicin for effectively inhibiting biological growth, polyacrylic acid is used as a self-polishing reservoir to continuously release an environment-friendly antifouling agent; the pressure-sensitive adhesive adheres to the polydimethylsiloxane layer through the adhesive force change generated by oxygen plasma to achieve the low-surface-energy antifouling effect, synergistic gain is achieved, the composite material intervenes into the biological fouling process from multiple aspects, and the composite material copes with the marine biological fouling process jointly.
Owner:MARINE TECHNOLOGY INNOVATION CENTER YANGTZE DELTA

Biocompatible selective outer membrane of implantable biosensor and preparation method of biocompatible selective outer membrane

The invention provides a biocompatible selective outer membrane of an implantable biosensor and a preparation method of the biocompatible selective outer membrane, and the preparation method comprises the following steps: preparing an outer membrane diluent, and respectively dissolving a PS-P4VP copolymer, NH2-PEG-NH2 and PEGDGE in the outer membrane diluent to obtain a mixed solution; the ratio of PS to P4VP of the PS-P4VP copolymer is (0.5: 9.5)-(3: 7); coating the surface of an enzyme layer of the in-vivo implanted sensor with the mixed solution, and curing for 48-56 hours at normal temperature, so that an amino group of NH2-PEG-NH2 and a pyridine group of P4VP form a dynamic covalent bond to obtain an inner layer; the inner layer is immersed in deionized water for 1.5 h or above, the uncrosslinked PEG derivative is eluted, and a porous inner layer is obtained; and coating the surface of the porous inner layer with a polysulfobetaine solution to obtain the hydrophobic antifouling coating. By adopting the technical scheme, the mechanical strength and the long-term stability are improved.
Owner:SEAGATE MEDICAL TECH (SHENZHEN) CO LTD

Environment-friendly adhesive hydrogel antifouling coating as well as preparation method and application thereof

The invention belongs to the technical field of biological fouling protection, and particularly relates to an environment-friendly adhesive hydrogel antifouling coating which is prepared by the following steps: grafting a catechol group to an acryloyl compound with double bonds through acylation reaction to obtain a dopamine-acrylamide compound; the preparation method comprises the following steps: carrying out copolymerization reaction on an acrylamide derivative and a dopamine-acrylamide compound in a water environment to obtain an acrylamide derivative copolymer; and mixing the chitosan and the acrylamide derivative copolymer to obtain the environment-friendly adhesive hydrogel antifouling coating. According to the invention, polyacrylamide and catechol are introduced into a chitosan system at the same time to form a chitosan-polyacrylamide-catechol ternary synergistic network, and the chitosan-polyacrylamide-catechol ternary synergistic network has the effects of self-repairing, high toughness, strong adhesion and intelligent response.
Owner:HENAN ACADEMY OF SCI CHEM RES INST CO LTD +1

Marine antifouling coating with copper ion controllable release and self-repairing functions and preparation method thereof

The invention discloses a marine antifouling and anticorrosive coating with copper ion controllable release and self-repairing functions and a preparation method of the marine antifouling and anticorrosive coating, and belongs to the technical field of marine equipment antifouling and anticorrosive coatings. In order to solve the problems that a traditional copper-based antifouling coating is too fast in initial release of copper ions, poor in antifouling persistence, easy to damage and difficult to give consideration to antifouling and self-repairing performance, the preparation method comprises the following steps: firstly, preparing a KH560 modified nano copper oxide / activated carbon antifouling agent; controllable release of copper ions is achieved through the adsorption effect of activated carbon and interface modification of KH560. Secondly, taking PTMG and TDI as raw materials, and introducing FDME and BMI to construct a self-repairing polyurethane matrix containing reversible covalent bonds and hydrogen bonds; finally, the antifouling agent is introduced into the self-repairing polyurethane matrix according to a specific proportion, and the composite coating is prepared. According to the invention, long-acting controllable release of copper ions and synergistic improvement of self-repairing and corrosion resistance of the coating are realized, and the coating is suitable for long-term protection of marine equipment.
Owner:JILIN UNIVERSITY

Cerium oxide / piezoelectric material composite nano-enzyme for antifouling coating as well as preparation method and application of cerium oxide / piezoelectric material composite nano-enzyme

The invention discloses cerium oxide / piezoelectric material composite nano-enzyme for an antifouling coating as well as a preparation method and application of the cerium oxide / piezoelectric material composite nano-enzyme, and belongs to the technical field of material chemistry and marine protection. The preparation method of the composite nano-enzyme comprises the following steps: dispersing a metal cerium source and a piezoelectric material source in a solvent according to a mass ratio of 1: (1-5), carrying out phase formation and composite treatment, and collecting a solid product after treatment, thereby obtaining the composite nano-enzyme. The composite nano-enzyme can be used for marine antifouling paint to form a functional material system capable of realizing self-driven antifouling by directly utilizing mechanical energy such as ocean waves, vibration and the like. According to the system, mechanical energy is converted into electrochemical energy to drive in-situ generation of H2O2, and Ce < 3 + > / Ce < 4 + > redox cycle is utilized to efficiently convert H2O2 into ROS, so that sustainable antibacterial and anti-biological adhesion effects are achieved, toxic substances are not released, and the system belongs to an environment-friendly protection technology.
Owner:TIANJIN UNIV

Antifouling paint composition

An antifouling coating composition comprising: (A) a binder comprising a (meth) acrylic copolymer (i) comprising a silyl ester group; (B) from 2.0 to 30% solids volume, such as from 5.0 to 20% solids volume, of cuprous oxide; and (C) 2.0 to 65% solids volume, such as 10 to 55 solids volume% of hollow spheres.
Owner:JOTUN AS LTD

An antifouling coating, a method for preparing the same and use thereof

The present application relates to the technical field of marine antifouling coating, in particular to an organic-inorganic composite antifouling coating, a preparation method and application thereof.The raw materials of the antifouling coating include A component and B component in a weight ratio of (7-9):1, wherein the A component includes the following raw materials in parts by weight: 50-75 parts of hydroxyl silicone resin, and 5-20 parts of antifouling agent; the B component includes the following raw materials in parts by weight: 10-30 parts of modified silicone resin, 20-80 parts of silica gel, and 1-10 parts of auxiliary agent; the hydroxyl silicone resin is a two-end hydroxyl silicone oil, and the hydroxyl content in the hydroxyl silicone resin is 0.025-3 wt%.The present application provides a low surface energy antifouling coating applied to marine vessels, and the coating has a uniform and staggered low surface energy surface and a hydrogel surface.The low surface energy antifouling coating has good film elasticity, low surface tension, good impact resistance, high scratch resistance, and a long effective service life of more than seven years.
Owner:HUNAN AEROSPACE SANFENG SCI & TECH CO LTD

Carbon-confined nickel-based schottky heterojunction nanoporous composite antifouling agent and preparation method thereof

PendingCN122648767AImprove light-to-heat conversion efficiencyHigh photodynamic capabilityMarine equipmentAnti bacteria
The application discloses a kind of carbon confinement nickel-based schottky heterojunction nanoporous composite antifouling agent and preparation method thereof.The antifouling agent material mainly includes nickel-based schottky heterojunction, metal oxide and nitrogen-doped carbon confinement structure, by reasonably controlling metal component, oxide type, carbon shell thickness and porous structure, excellent photothermal, photodynamic and antibacterial properties are obtained.The material is synthesized by "precipitation-annealing coordination" method, which can effectively improve the stability of the antifouling agent in the tropical South China Sea marine environment, prolong the antifouling period, and show significant antibiofouling ability under seawater corrosion, high temperature, high salt and high ultraviolet conditions.The application has lower cost, good environmental friendliness, and can be widely used in marine facilities, ships and other marine equipment antifouling coating.
Owner:HAINAN UNIV

Intrinsic antifouling coating composition based on furan dioxime antibacterial crosslinker and application

The application discloses an intrinsic antifouling coating composition based on furan dioxime antibacterial cross-linking agent and application. The intrinsic antifouling coating composition comprises an A component and a B component, the A component comprises a zwitterionic modified hydroxyl silicone oil, and the B component comprises a furan dioxime antibacterial cross-linking agent. After forming a coating, the organic silicon segment, the zwitterionic segment and the furan dioxime segment in the intrinsic antifouling coating composition can respectively endow the coating with dynamic antifouling performance, static antifouling performance and sterilization performance, meanwhile, the coating composition realizes intrinsic triple antifouling without any antifouling agent and related fillers, and is suitable for efficient antifouling of the surface of marine equipment.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD OF SCI

Antifouling coating composition

The present invention relates to an antifouling coating composition comprising an anionic polymer having one or more metal cations wherein the anionic polymer has siloxane moieties covalently bonded via amide groups. The anionic polymer is an acrylate-based copolymer prepared from at least one acrylate-based monomer and at least one acrylamide-based monomer having a linked polysiloxane moiety. The composition is particularly useful as a self-polishing antifouling coating.
Owner:AKZO NOBEL COATINGS INT BV

Device for quickly pasting marine antifouling coating

The utility model discloses a device for quickly pasting a marine antifouling coating, which comprises a moving trolley, the cloth roll frame, the rubber wheel and the compaction wheel are sequentially arranged on the moving trolley; the cloth roll frame is used for erecting a sticking type antifouling coating; the rubber wheel is used for brushing an adhesive to the bottom of the sticking type antifouling coating; the compaction wheel is used for compacting and sticking the glued sticking type antifouling coating to a to-be-stuck surface; when the movable trolley moves forwards, the adhesive type antifouling coating on the cloth roll frame along with the trolley is pulled out, the upper side of the rubber wheel drives the rubber wheel to roll and brush glue, and then the compaction wheel is driven to roll and compact the surface to be adhered through friction of the non-glued surface of the adhesive type antifouling coating below the compaction wheel. According to the utility model, the construction efficiency of the adhesive antifouling coating can be improved.
Owner:SHENZHEN HAIYAN HI-TECH CO LTD

Copolymer for antifouling coating composition, antifouling coating composition

Provided is an antifouling coating composition that can exhibit excellent properties even when an antifouling coating film has been repeatedly applied, without a deterioration in the dissolution stability of the coating film and without the occurrence of coating film abnormalities such as peeling and cracking. The present invention provides a copolymer for antifouling coating compositions wherein the copolymer A for antifouling coating compositions is obtained by the copolymerization of a monomer mixture comprising a monomer (a), a monomer (b), and a monomer (c); the monomer (a) is given by general formula (1); the monomer (b) is given by general formula (2); the monomer (c) is a monomer other than the monomer (a) and monomer (b), that is copolymerizable with the monomer (a) and monomer (b); the proportion of the monomer (a) in the monomer mixture is 25-60 mass%; the copolymer has a molecular weight distribution (Mw / Mn) of at least 5.0; and the copolymer does not contain the sulfur atom.
Owner:NITTO KASEI CO LTD

Nanometer antifouling coating spraying device for lawn base cloth

The utility model relates to turf base cloth processing technical field, concretely relates to turf base cloth nanometer antifouling coating spraying device, including machine body, the left -hand side fixed connection of machine body has the support, the inside rotation of support is connected with unwinding roller, the right -hand side rotation of machine body is connected with the winding roller, the top of machine body inside rotation is connected with the cloth guide roller, the inside symmetry fixed connection of machine body has fixed frame, the top of fixed frame is connected with the sliding rod of sliding, the top fixed connection of sliding rod has the ball of impact, the first spring of outside of sliding rod and located fixed frame inside top end cover, the outside fixed connection of machine body has storage box, the outside fixed connection of storage box has water pump, compare with existing turf base cloth nanometer antifouling coating spraying device, the utility model through the design of extruding block and ball of impact, can complete the base cloth impact fast, spread its inside gap, the antifouling coating penetration is convenient, has improved the overall practicability greatly.
Owner:HUZHOU XINRUNTIAN TEXTILE CO LTD

Coal-based extract, preparation method thereof and application of coal-based extract as antifouling agent

The invention provides a preparation method of a coal-based extract, which comprises the following steps: extracting lignite by using a first solvent, separating an extracting solution, removing the solvent to obtain a solid product, dissolving the solid product in a second solvent, standing to separate out a solid, separating a solution, and removing the solvent to obtain the coal-based extract. The invention also provides the coal-based extract prepared by the preparation method and application of the coal-based extract as an antifouling agent. The invention further provides an antifouling paint. The coal-based extract provided by the invention can effectively prevent adhesion of marine organisms, does not contain metal elements such as copper and tin, is high in safety and environment-friendly, has better compatibility with matrix resin in the antifouling paint, and can realize stable and slow release of effective components, and the preparation method provided by the invention is wide in raw material source, low in cost and suitable for industrial production. The extraction process is simple and convenient, and the operability is strong, so that the method has good industrial practicability and is suitable for large-scale production and application.
Owner:CHINA ENERGY INVESTMENT CORP LTD +1

Preparation method of yacht special high-adhesion anti-fouling paint

The application discloses a preparation method of a yacht special high-adhesion anti-fouling paint, which comprises the following steps: preparing an anti-fouling paint resin by atom transfer radical polymerization of a catechol monomer containing an unsaturated double bond, an acrylic ester monomer containing an epoxy group, a silane acrylate monomer and an acrylic monomer, and mixing the resin with an amino-modified pigment, an anti-fouling agent and the like to obtain the anti-fouling paint. Compared with traditional anti-fouling paint, the catechol structure contained in the application can form a strong interaction with various substrates, greatly increasing the adhesion of the paint and avoiding the paint from falling off when the yacht is sailing at a high speed. The amino-modified pigment can be uniformly dispersed in the paint by reacting with the epoxy group of the resin matrix, avoiding the color deviation caused by pigment deposition or falling off, and enabling the yacht to keep a bright paint color for a long time. The amino group reacts with the epoxy group to form a cross-linking structure, increasing the hardness of the coating and resisting the impact of water flow and silt during the sailing of the yacht.
Owner:SHANDONG ACAD OF MARINE CHEM ENG

Antifouling coating composition and antifouling coating film

Provided is an antifouling coating composition comprising a silicon atom-containing resin wherein the silicon atom-containing resin comprises a constituent unit (A) and a constituent unit (B), the constituent unit (A) being a constituent unit derived from a monomer (a), and the constituent unit (B) being a constituent unit derived from a monomer (b). The monomer (a) has at least one silicon atom-containing group selected from the group consisting of a group represented by formula (I), a group represented by formula (II), a group represented by formula (III), and a group represented by formula (IV), and the constituent unit (B) is a constituent unit derived from a monomer (b) which is a polyfunctional (meth) acrylate having two or more (meth) acryloyl groups.
Owner:NIPPON PAINT MARINE COATINGS CO LTD

Preparation method and application of super-hydrophobic antifouling coating with self-repairing function

The invention discloses a preparation method and application of a super-hydrophobic antifouling coating with a self-repairing function, and belongs to the technical field of modification of self-repairing super-hydrophobic coatings of textiles. The method comprises the following steps: mixing boric acid, ethanol and n-octadecyltriethoxysilane, heating and stirring to completely dissolve the boric acid to obtain a mixed solution; and dropwise adding water into the mixed solution while heating and stirring, and then standing and reacting to form a B-O-Si covalent bond, thereby obtaining the super-hydrophobic antifouling coating material. After the fabric is subjected to immersion treatment by the super-hydrophobic antifouling coating material, a good dynamic hydrophobic effect is shown, the original air permeability and moisture permeability of the fabric are hardly influenced, and compared with the original fabric, the air permeability is reduced by 1.9-6.6%, and the moisture permeability is reduced by 3.2-4.8%; after the super-hydrophobic antifouling coating fabric is worn and damaged by washing, the super-hydrophobic performance can be recovered under the condition of standing for 180 minutes or heating at 110 DEG C for 30 minutes.
Owner:QINGDAO UNIV

An antifouling coating material, an antifouling coating, and a method for producing and using the same

The application provides an antifouling coating material, an antifouling coating and a preparation method and application thereof. The antifouling coating prepared from the antifouling coating material provided by the application has a water contact angle of 105.8-161.5 degrees and a sliding angle of 1.5-24.1 degrees in a wavelength range of 200-2500 nm; a light absorption rate of 65.7-98.3 %; and a maximum light-heat surface temperature of 45.1-82.8 DEG C under 1 solar light intensity. Moreover, the antifouling coating has synergistic antifouling of superhydrophobic low adhesion and biological repellence, wide-spectrum high-efficiency and controllable light-heat antifouling capacity, all-weather antifouling capacity facing the air-water interface of the sea, and excellent mechanical durability and light-heat / wetting performance stability.
Owner:ZHEJIANG OCEAN UNIV

Antifouling paint composition

The present invention relates to antifouling paint compositions comprising a combination of a binder or base elastomer, a solvent capable of dissolving the binder, and copper salt and / or copper particles. The binder or base elastomer is selected from PIB, BIMS, or PIB mixed with BIMS.
Owner:ROSLEV SUSTAINABLE HOLDING APS

Alloy self-repairing antifouling coating for ships and preparation method of alloy self-repairing antifouling coating

The invention relates to an alloy self-repairing antifouling coating for ships and a preparation method of the alloy self-repairing antifouling coating. The alloy self-repairing antifouling coating is prepared from components of raw materials in parts by weight as follows: 40-60 parts of modified epoxy resin, 10-25 parts of multifunctional packaging alloy microspheres, 5-15 parts of a dynamic cross-linking agent, 3-10 parts of nano reinforcing filler and 1-5 parts of an auxiliary. The surface of the modified epoxy resin is modified by a fluorine-containing surfactant and / or polyurethane. The fluorocarbon chain segment and / or the polyurethane chain segment are / is introduced into the epoxy resin, so that the coating is endowed with excellent anti-scouring performance and a long-term self-maintaining antifouling function.
Owner:JIANGSU LINLONG NEW MATERIALS CO LTD

Polyurethane antifouling paint and preparation method thereof

The invention discloses a polyurethane antifouling paint and a preparation method thereof, and belongs to the field of paints.The preparation method comprises the steps that cardanol and formaldehyde are subjected to polycondensation to form a cardanol aldehyde prepolymer, then the cardanol aldehyde prepolymer, polyether polyol and isophorone are mixed and react, and cardanol modified polyurethane is obtained; and mixing a volatile solvent, a flatting agent, nano silicon dioxide, perfluoropolyether oil and cardanol modified polyurethane to obtain the polyurethane antifouling paint. The cardanol structure is introduced, so that the film-forming property of the coating can be improved, active sites can be provided for subsequent polyurethane modification, the cohesion of the coating is enhanced to a certain extent, and the coating is more wear-resistant by matching with the nano silicon dioxide; the cardanol modified polyurethane combines the advantages of cardanol, polyether polyol and isophorone diisocyanate, and perfluoropolyether oil has extremely low surface energy, and can effectively inhibit the adhesion of marine organisms and play an antifouling role under the combined action of the perfluoropolyether oil and other components.
Owner:NANJING ZHIYUAN HIGH-TECH MATERIALS TECHNOLOGY CO LTD